/*******************************************************************************
* This program and the accompanying materials
* are made available under the terms of the Common Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/cpl-v10.html
*
* Contributors:
* Peter Smith
*******************************************************************************/
package org.boris.xlloop.reflect;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.boris.xlloop.IFunction;
import org.boris.xlloop.IFunctionContext;
import org.boris.xlloop.RequestException;
import org.boris.xlloop.xloper.XLMissing;
import org.boris.xlloop.xloper.XLNil;
import org.boris.xlloop.xloper.XLoper;
public class OverloadedMethod implements IFunction
{
private List methods = new ArrayList();
public void add(InstanceMethod m) {
this.methods.add(m);
}
public XLoper execute(IFunctionContext context, XLoper[] args) throws RequestException {
int lastArg = args.length - 1;
for (; lastArg >= 0; lastArg--) {
if (!(args[lastArg] instanceof XLNil || args[lastArg] instanceof XLMissing)) {
break;
}
}
InstanceMethod matched = null;
double matchPercent = 0;
for (Iterator i = methods.iterator(); i.hasNext();) {
InstanceMethod m = (InstanceMethod) i.next();
double mc = m.calcMatchPercent(args, lastArg);
if (mc > 0 && mc > matchPercent) {
matched = m;
matchPercent = mc;
}
}
if (matched != null)
return matched.execute(context, args);
throw new RequestException("#Invalid args");
}
public InstanceMethod getFirstMethod() {
return (InstanceMethod) methods.get(0);
}
}